EASTERN PACIFIC · 1959 SEASON
Hurricane Patsy (1959)
Recorded track and intensity · 6 Sept 1959–11 Sept 1959
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173 mph / 278 km/h
9 Sept 1959 · tropical stage
Full archive record, including non-tropical stages if present
Along the recorded center positions
STORM HISTORY
Track and intensity summary
Patsy is listed in the Eastern Pacific basin for the 1959 season. Its archived track begins on 6 Sept 1959, 00:00 UTC at 18.7°N, 178.7°W. US-agency wind is not available for this first observation. These dates describe the available observations, which may include stages before and after the tropical cyclone phase.
The first Category 5 observation appears on 6 Sept 1959, 18:00 UTC. The highest recorded tropical-stage one-minute sustained wind is 150 knots (173 mph / 278 km/h), first recorded on 6 Sept 1959, 18:00 UTC at 22.2°N, 178.5°W. The minimum recorded tropical-stage central pressure is 970 hPa on 9 Sept 1959, 18:00 UTC.
The full record spans 120 hours and approximately 2,300 kilometers along the recorded center positions. The last recorded position is 37.4°N, 179.8°E on 11 Sept 1959, 00:00 UTC.
QUICK ANSWERS
Patsy in brief
What was Hurricane Patsy’s highest wind speed?
150 kt (173 mph / 278 km/h), the highest one-minute sustained wind in its tropical stage, recorded on 6 Sept 1959, 18:00 UTC.
What category was Hurricane Patsy?
Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on 6 Sept 1959, 18:00 UTC. Other agencies classify storms differently.
What was Hurricane Patsy’s lowest pressure?
970 hPa, the minimum central pressure recorded during its tropical stage, on 9 Sept 1959, 18:00 UTC.
When did Hurricane Patsy occur?
The archived track runs from 6 Sept 1959, 00:00 UTC to 11 Sept 1959, 00:00 UTC, with the tropical stage from 6 Sept 1959, 00:00 UTC to 11 Sept 1959, 00:00 UTC.
Where did Hurricane Patsy form?
In the Eastern Pacific basin, in the 1959 season. Its first archived position is 18.7°N, 178.7°W on 6 Sept 1959, 00:00 UTC.
Did Hurricane Patsy make landfall?
No archived position places Hurricane Patsy’s center over land, but positions are six-hourly and a brief landfall can fall between them.
METHODOLOGY
Data sources and limitations
The map and summary are generated from NOAA’s IBTrACS v04r01 archive. Wind and category use US-agency records; minimum pressure is calculated during the tropical stage, with the archive’s pressure source retained. Category 5 refers to the Saffir–Simpson one-minute wind scale; local agencies may use different classifications. Coastlines use Natural Earth’s 1:10m land data.
Track distance adds great-circle distances between consecutive observations, excluding gaps over 12 hours. This track has no gaps over 12 hours. The line shows the storm’s center, not its size, rainfall or flood extent. Converted wind speeds are rounded to the nearest whole unit.
Archive retrieved
NOAA IBTrACS archive · Field documentation
Sources & methodology